Here we have a wide range of AOE2 build orders that involve some form of fast castle strategy. The Fast castle involves reaching the Castle Age as quickly and efficiently as possible. This means skipping Feudal Age aggression. Due to this, it’s quite a risky strategy to try in a 1v1 game on an open map. On open maps, you will need to wall up your base as quickly as possible to have a chance of the fast castle build order working. In a team game, it’s not quite as risky as your allies can protect you from any feudal age aggression, like an archer rush.
As you can see from the list below, some of the fast castle build orders are for developing a booming economy. This is where you reach the Castle age and immediately make 2, or even 3, new town centres. The aim of a fast castle boom strategy is to focus purely on producing villagers before making an army. This is good for closed maps like Arena or Black Forest where you can be in a position to make an army quickly once you have a strong economy. Generally you will need 100-130 villagers although you’d need to start getting an army together before then. if you have resources, spend them!
Other AOE2 fast castle build orders on here involve build orders that allow you to immediately make a castle, or to carry out a castle age rush with Knights, Eagle Warriors or Cavalry Archers for example. Some of the build orders are specific to a certain civilization.